Valco Fittings - infochroma ag
Valco Fittings - infochroma ag
Valco Fittings - infochroma ag
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CHEMINERT FITTINGS<br />
Low Pressure Standard Tube End <strong>Fittings</strong> and External Nuts<br />
Standard flanged tube end fittings 1/4-28<br />
The basic component of the Cheminert system is the polypropylene nut,<br />
retained on PTFE or FEP tubing by a flange formed with a Cheminert flanging<br />
tool (p<strong>ag</strong>e 70). This is an excellent method for connecting fluorocarbon<br />
tubing, as there is no reduction of the inside diameter and no binding or<br />
twisting of the tubing when the fitting is tightened. A mating of the parts is<br />
achieved with zero dead volume, making this an ideal fitting for biological<br />
systems.<br />
Cheminert tube end fittings come in twelve different colors for system color<br />
coding, and are available for 1/16" or 1/8" OD fluorocarbon tubing. (While in<br />
theory other polymers could be molded to form a flange, only fluorocarbons<br />
such as PTFE or FEP have low-temperature malleability and good form<br />
retention at operating temperatures.) Tube end fittings attach directly to<br />
Cheminert valves and fittings, and are easily joined to each other with a union.<br />
Tightening by hand is all that is required to make a leak-free seal at 500 psi<br />
liquid, although for long term reliability a wrench could be used to apply an<br />
additional 1/8 turn.<br />
Pack<strong>ag</strong>es include the same number of washers as fittings.<br />
Flanged fittings 1/16" OD 1/8" OD<br />
(pkg/10) Prod No Prod No<br />
TUBING NUT WASHER FLANGE<br />
Black CF-1BK CF-2BK<br />
Blue CF-1BE CF-2BE<br />
Brown CF-1BR CF-2BR<br />
MORE INFORMATION<br />
High pressure<br />
fittings ........pp 63-66<br />
PTFE and FEP<br />
tubing. ..............90<br />
TECH TIP<br />
To make up standard<br />
flanged tube end fittings,<br />
use the flanging tool on<br />
p<strong>ag</strong>e 70.<br />
Flanged tube end fitting<br />
Dark gray CF-1DG CF-2DG<br />
Green CF-1G CF-2G<br />
Lavender/pink CF-1L CF-2L<br />
Natural CF-1N CF-2N<br />
Orange CF-1E CF-2E<br />
Purple CF-1P CF-2P<br />
Red CF-1R CF-2R<br />
White CF-1W CF-2W<br />
Yellow CF-1Y CF-2Y<br />
Assorted (pkg/12, one of each color)<br />
CF-1A<br />
CF-2A<br />
Washers (pkg/10) CF-W1 CF-W2<br />
A flanging starter kit,<br />
complete with flanging<br />
tool, flanging tips, and<br />
an array of tubing and<br />
fittings, is also available.<br />
(See p<strong>ag</strong>e 70.)<br />
TECH TIP<br />
Use our external nut<br />
tube end fittings to make<br />
true zero volume butt<br />
connections without a<br />
coupling.<br />
External nuts for flanged tube ends<br />
1/4-28<br />
External nuts with female 1/4-28 threads are designed for<br />
use on tubing with a flanged end, just like the standard<br />
tube end fittings. Use them instead of a union or<br />
coupling to make a zero volume butt connection.<br />
Pack<strong>ag</strong>e of 5: PEEK CTFE<br />
Tubing Prod No Prod No<br />
OD<br />
1/16" CEN1PK CEN1KF<br />
1/8" CEN2PK CEN2KF<br />
www.vici.com | <strong>Valco</strong> Instruments Co. Inc. Sales: 800–367–8424 Fax: 713–688–8106 | 69